NoIP to link to GoDaddy domain

I am running a Wordpress website on my Raspberry Pi. Because my router has dynamic IP, I set up NoIP on my RPI so it automatically updates a domain (glitchtrip.ddns.net) to point at my IP address.

Now I am trying to connect my GoDaddy domain which I want to use (glitchtrip.co.uk) to the NoIP domain. The way to do this in GoDaddy DNS Manager is to simply put the IP address in the A host. However, it won't let me put glitchtrip.ddns.net, because it's not a valid IP address. Is there any other way to do this?

http://ift.tt/2bym7bQ